I want to desperately locate my lost iPhone 4 (factory unlocked). It does not have an Internet connection—no 3G, no 4G and it is not in a Wi-Fi zone. The bell rings when I call which means that SIM is the same and battery has some juice left.

"It does not have an Internet connection. That is, no 3G, no 4g and it is not in a wi-fi zone." The wording is a bit funny because it refers to Internet connectivity, but I think the OP is saying it's got zero connectivity at all.
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Terrance ShawOct 11 '12 at 14:19

I think he means the dial tone ringing, though. Because if he could hear the device itself ringing, then it wouldn't be lost.
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Terrance ShawOct 11 '12 at 14:29

1

If the dial tone is ringing, that implies the phone (or at least the SIM card) has cellular connectivity, else the call would go straight to voicemail.
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GerryOct 11 '12 at 14:30